What version of notes are you using? Have you checked the notes documentation? Last time I coded for Domino databases, the documentation on the Java API was pretty decent, and mirror the LotusScript classes fairly decently - but that was 3 years ago? 4 years ago?
If no one has helped you by the time I get home this evening, I'll see if I have some of my old books. It's actually a pretty easy task to do IIRC
Imagination is intelligence having fun...
subject: how to get email id from lotus notes address book